new rules for foreign investors /traders  put in place by U.S.   gov

As a result of recent U.S. legislation, effective January 1, 2023, gross proceeds from the sale of and distributions from PTPs held by non-US tax residents (accounts which do not file W9 declarations) may be subject to 10% U.S. withholding tax.

Here is the impact to you if you hold a PTP position that has income effectively connected with a U.S. trade or business: If you sell the PTP after December 31, 2022, there will be a 10% withholding tax applied to the gross proceeds from the sale. Further details about this rule can be found on the IRS site.

Impacted PTPs can typically be identified if:
They withhold 37% on distributions (21% on distributions to corporations) 

this includes a lot of ETFs   BOIL & COLD included